Pressing machine



June 16, 1925.

J. DENEMARK PRESSING MACHINE Filed Nov. 22. 1923 4 Sheets-Sheet 2 ATTORNg June 16, 1925.

J. DENEMARK PRESSING MACHINE Filed Nov. 22 1923 4 Sheets-Sheet 3 VMWWW..41AM 1 June 16, 1925. 1,541,907

J. DENEMARK PRESSING MACHINE Filed Nov. 22, 1925 4 Sheets-Sheet 4 wmmfgATTORNEY v leading Patented June 16, 1925.

JACOB DENEMARK, 0F TRENTON, NEW JERSEY.

nnssmo MAoHINn Application med November 22, 192s. serial no. 676,229.

To all whom it may concern:

y Be it. known that I, JACOB DENEMARK, a citizen of the United States ofAmerica, residing at the city of Trenton, Mercer County, State of NewJersey, have invented certain new and useful Improvements' iny ward partof the iron. Y

A further object is providing an iron having a combustion chamber,reservoir and a steam super-heating chamber all preferably cast integralwith the body of the iron.

A further object is to provide means for the steam that has beengenerated in the interior of the iron through the superheating chamberto a point adjacent the front of the iron where it may pass through avalve which is intermittently opened and closed to discharge the steamdirectly upon the goods.

Another objectis to provide a base having therein a feed bar which israised to position and drawn rearwardly to feed the goods in a step bystep motion along the undersurface of the pressing iron.

As the pressing bar will be alternately above and. below the surface ofthe base upon which the iron rests, it is necessary that the same bealways brought to rest beneath the surface of the base when the iron isresting on the latter, and it is one of the objects of my invention toprovide mechanism whereby this feature will automatically be carriedout.

Another object is to provide a machine of the character referred towhich can be manufactured cheaply and which will do the work of pressingefliciently and rapidly.

Referring to the drawings wherein I have shown a preferred embodiment ofmy invention:

Fig. 1 is a view in side elevation of a machine constructed inaccordance with my invention,

Fig. 2 is a'rear end elevation showing the driving motor and power shaftoperated thereby,

Fig. 3 is a top plan view taken on the line 3 3 of Fig. 2,

Fig. 4 is a section taken on the line 4-4 of Fig. 2, and shows a stopmember associated with the power shaft and adapted to bring the same toa stop at ai predetermined posltion, v

Fig. 5 Fi 1, F `ig. 6 is a section on the line 6 6 of ig. 7 is a topplan view of the bottom pla-te of the iron showing grooves cut thereinfor the purpose of drying the steam,

Fig. 8 is a top plan view of the base extension arm showin the use incombination therewith of a elt backing for pressing, and

Fig. 9 is a section on the line 9 9 of Fig. 8.

Fig. 10 is a front elevation ingiron.

Referring more particularly to the drawings, 5 denotes the table havinglegs 6 and 7, and braces 8 upon the top of which is mounted orkotherwise secured the pressing machine 9. This machine consists ofessentially three parts, a base 10 having an extended supporting arm 11,the front end of which is tapered as at 12 to allow a tubular piece ofmaterial to be passed thereover for the pressing operation. To the base10 is pivoted a supporting arm 13 having an overhanging arm 1,4 in thelatter of which is pivotally supported as at 15, the pressing iron 16,the base extension 11 forming a support for the iron. The base 10 andarm is a section on the line 5 5 of of the press- 'member 13 are hollowas is also 'the base extension 11. The overhanging portion 14 of the arm13 being channelled as shown to provide a receptacle for the upper endof the pressing iron 16.

-The iron per se is hollow and is cast to provide interior compartments,17 being the reservoir, 18 the combustion chamber and 19 a super-heatingchamber. Extending from the top of the iron and through the bottom ofthe reservoir into the bottom. of the combustion chamber, at 8 there isprovided air flues 20 which are open at' their top end' to theatmosphere and which assist in the combustion of the gas which isallowed in to suitable burners 21 through the medium of an exterior pipe22, carried on the side of the iron as shown in Fig. 1.

I may provide this gas line with any number of suitable valves 23 toregulate the amount of heat required. Carried in the top of the iron andpassing therethrough is an inlet pipe 24 having a funnel 25 at its upperend, and a valve 26. This inlet pipe serves two purposes. First, thereservoir within the iron may be partly filled with water and then thevalve 26 closed and after steam has been generated, the steam passes upthrough the pipe 27, down pipe 2B and into the super-heating chamber 19of the iron.

This super-heating chamber is, of course, heated by the burning of thegas in the combustion chamber 13, and serves to dry the steam before itreaches the forward end of the iron at which point it passes out throughthe pipe 29, and into a valve 30, the valve stem of which is engaged bya finger 31 car-- ried adjacent the lower end of a vertical operatingbar 32. Upon operation of the bar 32, the valve will, of course, bealternately opened and closed in rapid succession so that the steam willpass therethrough and into the pipe 33 which passes downwardly throughthe iron to the bottom thereof.

The iron, in order to present a polished surface to the goods to bepressed, is provided with a highly polished metal bottom 34, which iswelded or otherwise fastened to the bottom of the iron. rThis auxiliarybottom is provided with a longitudinal tortuous groove which permits,after extending the length of the bottom several times, at the frontportion thereof, (at which point the bottom of the plate 34 isperforated as at 36,) to allow the exit of steam directly upon the goodsto be pressed. p

In order to provide for the vertical movement of the rod 32, I employ abell-crank 37, pivotally mounted in the side walls of the over-hangingarm 14, said bell-crank being connected to a vertical lever 39 pivotedin the arm 13, through the medium of a rearwardly extending link 40, thearm 39 being forked at its lower end to engage the opposite sides of acam 41 carried by a power shaft 42. The over-hanging arm 14, and itsenlarged portion 13, is pivoted to the base 1() by the pivot pins 43,and due to the weight of the arm it normally keeps .the iron on the baseextension 11, or pressing table. In order to provide for the iron to beraised clear of the table or extension 11, I employ a series of levers44 which draw down on a link 45, which is connected to the forward endof an arm 46, pivoted on a shaft 47, carried by the side walls of thebase 10. The arm 46 operates in its downward movement, a verticalconnecting rod 48 which is attached at its upper end to an arm extension49.

In Fig. 1 therefore, it is clearly shown that a pressure on the footpedal of the lever 44 Will cause downward movement of the rod 48, whichin turn causes raising of the over-hanging arm 14 about-its pivot point43, to raise the iron 16 clear of the base extension 11.

I. provide in the base 10 a shaft 50 upon which are supported two springcarrying rods 51 which are threaded intermediate their ends to carry acup member 52, the

same connecting the two rods 51.

Encircling the rods 51 are springs 53, which rest in the cup members52'and abut against the top wall of the arm 13. These springs kee theiron normally in pressing contact witi the extension il. llie shaft 50also carries a forked lever 54, the legs 55 of which extend'tornati-diy, and are caused to press upwardly against the spaced cammembers 56 carried -on power shaft 42 from the medium of springs 57extending between the ends of the lever and the forward Wall of the base10.

The power shaft 42 carries on its outer end a gear 58, which meshes withand is driven by a pinion 59 carried on the end of a motor shaft 60, themotor 61 being a conventional electric type. Y

The shaft 42 carries a sleeve 62, to which is affixed the gear 58, andone-half of a clutch member 63, the other half 64 of the said clutchmember being slidably connected to the power shaft 42. r1`he clutchportion 63 is formed to provide a flange 65, half of the periphery ofwhich is provided with teeth 66 which are adapted to be engagedby avertical movable stop member 67, held in a suitable carrier 68, which ispivoted on a shaft 69 which is carried in the side walls of the base 10.

The carrier is provided with a bore 70 in which the stop 67 rides, thestop being provided with a smaller portion 71 around which passes acompression spring 72 against which the downward movement of the stop 67must act. lVhen the stop 67 is engaged by the teeth 66, the rear end ofthe` carrier 68, is pivotally engaged by a vertical rod 73, whichengages an operating lever 74 on its lower end.

This operating lever 74 having a foot pedal portion 75 through themedium of which it is operated when the latter is depressed, alsooperates a vertical rod 76 connected to the end of a bell-crank 77,pivotally carried beneath the table 5, and having its end extendingthereabove, and formed to provide the usual forked members 78 of theconventional clutch operating lever. When the lever 74 is thereforedepressed, it can be readily seen that the carrier is thrown to aposition where the stop 67 does not engage the teeth 66. This action isslightly slower than the action of the clutch lever, so that the stopwill be withdrawn before .nected by a bottom plate 80,

,goods and draw it along the lThis belt down upon the serrated teeth theclutch is connected up to operate the power shaft 42 which sets themachinein motion; reversely the releasing of the lever 74 disengages theclutch and throws the earrier 68 to a position where its stop engagesthe teeth 66 as soon as the momentum of the machine carries shaft 42around to lipsition where the teeth may be engaged y the stop, the stopyielding slightly due to the spring 72 against the turning movement ofthe flange 65.

In order to provide a feeding mechanism, I employ longitudinal feed bars79, conthe rear end of which is turned down to form an eye 81, withwhich is pivotally connected an operating lever 82, the forward end ofwhich is formed to provide a cam engaging strap 83, which surrounds acam 84, carried by a power shaft 42, a similar rod operated by a cam 86,causes the pivotal movements of spaced bell-cranks 87 and 88, whichsimultaneously raise the plate 8O and cause a rising movement to beimparted to the feed bars 79. The operation of the cams 84 and 86,provide in sequence a lifting of the feed bars, the upper surfaces ofwhich, by the way, are serrated to a point above the surface of the baseextension 11, to engage the bottom of the 1ron.

At the end of the drawing movement, which is caused by the level' 82,the feed bars 79 are lowered and. returned in' their lowered position totheir starting point, at

`wli'clli time they begin the operation again,

whereby the material to be pressed is 4fed in a step by step motion alonthe table and between the upper surface o? the same and the bottomsurface of the pressing iron.

I may provide a spring held belt 89, to forni a backing for the goods tobe pressed. can extend from 'the base 10, along the upper surface of theextension 11, between the two feed bar openings into a suitable hollowedportion or chamber 90 in the front of the arm 11 where it can beyieldably .maintained through the medium of a coil spring 91.

In order to prevent the iron from coming of the feed bar when the sameis in raised position, I provide in the arm 54, an adjustable set screw93, which is adapted to press downwardly on the lever 46. It can beseen, therefore, that at the finish of the pressing operation when theoperator removes the feet from the pedals and allows the levers 44 and74 to rise, the supporting arm 13 will be forced to'drop the iron on theextension 11, and thus before the momentumV of the power shaft 42 hasdied out, so that the iron would come down upon top of the moving .feedbars which would cause breakage to the machine.

- thereto.

The cams 56 operate in unison with the feed bars so that every timethefeed bar is in raised position, the lever 54 will be in its lowermostposit-ion, and the set screw 93, will engage the lever 46 to depress thesame, and cause the iro'n thereby to raise from the table 11. t

I may provide with the iron any of the necessary accessories, such asthe blow-olf valves 94, drips 95, and gauge 'glass 96 in addition to a.pressure indicatorl 97, and means for throwing a light upon the front ofthe machine where the work is introduced It will be seen, therefore,that I have provided an efficient machine which will rapidly andthoroughly press a uantity of material. Also the use of the flat ironapparently is advantageous over the use of roller members inasmuch asthe iron presses a continued smooth heated surface to the goods, so thatthe same will be thoroughly pressed and dried. Also, the operation ofthe machine is carried out with the smallest amount of mechanism and inthe most eilicie'nt manner.

Having described my invention what I claim is:

1. A pressing machine comprising a pressing iron, means for generatingsteam, a material feeding element beneath the iron, means for operatingthe feeding element, means for periodically introducing ,the generatedksteam to the material to be pressed,

said means being operated by the feeding element operating means.

2. A pressing machine embodying an iron, a combustion chamber in theiron and bounded by the bottom wall thereof, an auxiliary bottom plateon the bottom wall of the 1ron said plate being grooved lengthwise toform a tortuous passageway between said bottom wall and said plate, aridan outlet adjacent the forward end of said plate to which saidpassageway leads.

3. In a pressing machlne, an iron, means for generating steam in theinterior of the iron, a bottom plate on said iron having a tortuouspassageway formed therein, means for leading the steam from the interiorof the iron to the passageway in' the bottom plate, and means forperiodically admitting steam to said bottom plate.

4. A pressing machine comprising a pressing element, a channeledsupporting arm therefor, a base having an ed for periodically supportingthe pressing element,a power operated shaft in the base, a feed bar inthe basel extension, an eccentric on the shaft for operating the feedbar,

land a stop member associated with said extension adaptshaft forpermitting the-shaft to come to rest when the feed bar is in non-feedingposltion.

5. In a pressing machine, apressing lron,

a power shaft, a base having an extension upon which the iron isnormally adapted to rest, aV feed bar in the extension operated b theshaft, operator operated means for raising the iron off said extension,and means for periodically raising the iron automatically when the powershaft is o pl 'erating and the iron is resting on said extension.

6. In a pressing (machine, an iron, means for generating steam withinsaid iron, a valve for intermittently feeding the steam to the goods tobe pressed, a power shaft, a feed bar operated from said shaft formoving the goods in a step by ste through theV machine, an eccentric onthe shaft for operating the feed bar, and a cam member on said shaft forcausing the simultaneous operation of the steam valve.

7. A pressing machine comprising an motion ironing member, a base uponwhich the ironing member rests, material feeding members in said base, abelt facing for said base disposed between said feeding members, and aspring fastenin means to yieldably hold one end of said be t inside thebase member.

8. A pressing machine comprising a base, an arm pivote-d to said baseand 'having an overhanging channeled ortion, a pressing iron pivotally'suspendedp in said channeled portion and adapted to rest on said baseduring a pressing operation, a steam valve outlet from said iron, and alever pivoted in the arm co-operating with the valve outlet and means toactuate said lever to cause an intermittent flow of steam therefrom.

In testimony whereof I hereunto ailix my signature.

JACOB DENEMARK.

